Mop frame and handle coupling



' J. A. MEINHARDT.

MOP FRAME AND HANDLE COUPLING.

APPLICATION FILED nc.19. 1921.

1,422,368, Patented July 11, 1922-.

Mffiesses 6 jg [Em/ 72K07 fa/cofid. 7726/7754/46 sr rEs JACOB A.MEINHARDT, on CHICAGO, ILLINOIS.

IMO]? FRAME AND HANDLE COUPLING.

Specification of Letters Patent.

Patented July 11, 1922.

Original application filed .Tune 13, 1921, Serial No. 477,268. Dividedand this application filed December 19, 1921. Serial No. 523,352.

T all w hom it may concern Be it known that I, JACOB A. MEINHARDT, acitizen ofthe United States, residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin a Mop Frame and Handle Coupling, of which the. following is aspecification. v

My present invention relates to mops, and this application is a divisionof my application for Letters Patent for improvements in a mop andsupporting frame therefor, filed June 13, 1921, and bearing SerialNumber 477,268, now pending in the United States Patent Office.

The present invention has particular relation to a coupling o-r bearingconnection between the handle and frame of a mop, and has for one of itsobjects, to provide such a device whereby the mop frame and the handleconnected thereto by means of my improved coupling or hearing.connection will selfadjustin 'ly position themselves with respect toeach otherin its operation, without undue looseness of said members.

-Another object of the invention is to provide a coupling of the abovementioned character; or bearingconnection between the handleand theframe of a mop which is simple in construction, easily applied and willremovably and pivotallysupport the handle. a p H A still further objectis to provide a coupling wherein one of the members thereof may beformed or stamped'from a single piece of metal.

Other objects and advantages of the invention will be disclosed in thefollowing; description and explanation.

In the accompanying drawing which serves to illustrate an embodiment ofthe invention Fig. 1 is a plan view of a mop frame showing a portion ofthe handle therefor mounted thereon by means of my improved connectionor coupling.

Fig. 2 is a central sectional view taken on line 2-2 of Fig. 1 lookingin the direction indicated by the arrows.

Fig. 3 is an enlarged plan view of a fragment of a mop frame and aportion of the handle therefor showing the connection or couplinguniting said handle and frame, and

V Fig. 4 is an end elevation of Fig. 3 viewed from the front end of thedevice.

Like numerals of reference refer to corresponding parts throughout thedifferent views of the drawing.

In the accompanying drawing, I have shown a portion of a mop headmounted on the frame, of the construction set forth in my aforesaidpending application, but it will be understood that said mop head formsno part of the present invention as it is covered by claims in my saidpending application.

fteferring now more particularly to Fig. 1 of the drawing, the referencenumeral 5 designates as a whole the frame of the device, which may be ofmy suitable shape or outline, but by preference substantially triangularas shown, and is made of a single piece in the form of a rod or largewire. The sides 6 of the frame 5 are arranged at angles to each otherand at their junctures form a more or less pointed portion of the framefor the purpose of entering corners to be cleaned. One of the sides 6 isprovided with an inwardly extended arm 7 which terminates short of theaxial line of the frame as is clearly shown in Fig. 1, while the otherarm 6 of the frame is provided with an inwardly extended arm 8 which islocated in the same plane with the sides and extension 7, but isextended first toward the side 6 with which it is connected as at 8, andthen towards the other side of the frame, thereby providing a shaft orarm 9 upon which the bearing connection or coupling for the handle ofthe device is mounted.

The shaft portion of the arm 8 is screwthreaded as shown, and hasloosely mounted extended therefrom in parallelism and each is providedwith a transverse opening for the reception of the shaft 9. Located onthe outer surface of each of the prongs 11 and around the shaft, is awasher 16 and located on the outer surface of each of said washers is asplit spring washer 17 which are held in place against the washers 16 bymeans of nuts 18 one of which is located in screw, engagement with theshaft 9 outwardly of each of the spring washers 17.

In assembling the parts of this hearing connection or coupling whichunites the.

shaft 9 and handle 15, one of the nuts 18 is placedon the free end ofthe shaft 9 and screwed thereon to about the position adia v will restagainst the washer 16 adjacent the arm 8 of the frame. 7 When thuspositioned the other members 16 and 17 are positioned on the outerportion of the shaft 9 and held in position thereon by the nut 18adjacent the free end of said shaft. By this arrangement it is apparentthat by turning the nuts 18 in the proper direction the tension of thespring members 17 can be regulated so as to increase or decrease thepressure of the prongs 11 of the socket 12'against theends of the sleeve10, thereby affording means for holding the socket 12 against too freemove ment on the shaft 9, yet so as to permit of its self-adjustmentwith respect to the frame 5 while the device is being used.

As it is desirable that the plain washers 16 should be held againstrotation on the shaft 9, the said shaft is provided with a flattenedsurface 19 and the washers 16 are formed with openings of a shape tocorrespond with the cross-sectional form or shape of the shaft on whichthey are mounted.

By reference to Figs. 3 and a of the drawings, it will be seen andunderstood that the socket member 12 is made of a single piece of metal,which piece isbent longitudinally between its side edges, therebybringing the said edges together, in which position they frame.

are held by means of a laterally extended, tongue 20 integral with oneof said edges, andv a recess 21 in the other edge, with which saidtongue engages. By thus bending the socket member 12, it is manifestthat the prongs 11 thereof will be spaced in parallelism with oneanother so that the open ings in said prongs will coincide or align forthe reception ofthe shaft 9 of the mop curved transversely as shown, andform, when united at their edges, a cylindrical socket for the lower orfront end of the handle.

Having thus fully described my inven: tion, what I claim as'new anddesire to secure by Letters Patent is f 1. In a device of the classdescribed, the combination with a screw-threaded shaft, of a socketmember for a handle having at one of its ends a pair of spaced prongsprovided with apertures for said shaft, a sleeve located between saidprongs around the shaft, a washer located on the outer side of each ofsaid prongs around the shaft and against rotation thereon, a splitspring washer located around the shaft against the outer surface of eachof the first named washers, and nuts engaging said shaft and locatedagainst the outer side of each of said spring washers. t

2. In a device of the class described, the combination with a handle, ofa frame hav ing a screw-threaded shaft, a socket member for receivingsaid handle at one end of said member and pivotally mounted at its otherend on the shaft, a washer located around the shaft on "each side of thepivot point of the socket member and fixed against rotation on theshaft, a split spring washer located around the shaft against the outersurface of each of the first named washers, and nuts engaging said shaftand located against the outer side of each of said spring.

washers. V

JACOB A. MEINHARDT.

The sides of the socket 12 are

